www.makemkv.com

update: gave my usb hub a full power to the wall and works great
thanks for the help

I would think that would be it as I have a cheap same powered blu ray however, I am doing a copy to my hard drive and its spinning so fast its about to take off so seems to have enough power

or a way to copy disc to my hard drive and run from there?

any way to slow it down?

Error 'OS error - This device does not exist' occurred while reading '/BDMV/STREAM/00006.m2ts' at offset '1001521152' Error 'OS error - The volume for a file has been externally altered such that the opened file is no longer valid' occurred while reading '\Device\CdRom1' at offset '1001521152' Error...

what would cause a OS error of device does not exist when it has already read the chapter info and id writing the mkv file?
I am trying a external usb blu ray drive on windows 10
the drive is still there in file explorer